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RichInStyle.com: CSS bug guide - http://www.richinstyle.com/bugs/
List of CSS1 and CSS2 bugs in other Internet Explorer, Netscape, Opera versions, and a bug-by-bug guide on how to avoid them. |
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WestCiv - CSS1 and CSS2 Browser Support - http://www.westciv.com/style_master/academy/browser_support/
Groups properties by level of support. Contains guide, tutorials, and articles. |
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CSS-Discuss - http://css-discuss.incutio.com/
Wiki companion to the CssDiscussList mailing list. Includes tips and tricks and information on browser hacks, text sizing, and testing. |
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QuirksMode: CSS Contents and Browser Compatibility - http://www.quirksmode.org/css/contents.html
Tests of CSS2 and CSS3 selectors, pseudoclasses and declarations, including compatibility information for Explorer, Mozilla, Safari, and Opera. |
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Cascading Style Sheets Level 1 Browser Incompatibilities - http://www.ctlow.ca/CSS1/CSS1Incompatibility.html
Teaches how to produce Web pages (formatted with Cascading Style Sheets Level 1) that display attractively on modern browsers and adequately on recent ones. |